[satysin]

Indeed I have been doing this for all my work for over ten years now and it is one of my favourite things.

I use Day One as I also use it for my personal journal. Plain text is great but I do like being able to add rich content (screenshots for example).

As you say being able to look back and know exactly what you were doing on a particular day is a powerful thing.

I've found that over time I have become a lot better at succinctly explaining the problems I faced and how I made progress with them. It is invaluable, even just over the weekend, in helping me 'reload' my brain when I return to work. It also helped me in communicating more technical subjects to others less technical.

It's a brilliant way to unwind and finish the day. I usually only have to spend 5 minutes on it so it isn't like it is a huge commitment.

I highly recommend everyone at least give it a go for a month and see if it works for you.